You can try another cores if you wish, this is the cores from the video preview

Then in Arc Browser you need to add new system, point it to retroarch core (there are huge pack of presets for most popular cores in Arc Browser and you only need to select folder with roms and add rom extensions for each system).And then you need to scan roms and scrape box art.Each system step by step.

I recorded another video showing how Arc Browser and Retroarch working together.It contains custom theme for Arc Browser and Retroarch Overlays.If you want to download my Arc Browser theme and Retroarch overlays check out description of the video.

HI!!! i noticed that you have 19xx War against destiny within your MAME collection, my question is which core you used in retroarch to emulate that one? i tried MAME2014 core and FBA and nothing happened

I recorded another video showing how Arc Browser and Retroarch working together.It contains custom theme for Arc Browser and Retroarch Overlays.If you want to download my Arc Browser theme and Retroarch overlays check out description of the video.

HI!!! i noticed that you have 19xx War against destiny within your MAME collection, my question is which core you used in retroarch to emulate that one? i tried MAME2014 core and FBA and nothing happened